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Carl Boyd Carl Boyd is offline
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Default hardened gear on a mild shaft


"Grumpy" wrote in message
...

"Leo Lichtman" wrote in message
...

"Bob in Phx" wrote: (clip) any other ideas.... (clip)
^^^^^^^^^^^^^^^^^
Drill endwise into the interface between the shaft and the gear, so you
have a round keyway, in effect. Then run a tapered reamer down this
"keyway," and drive in a taper pin. Since it looks like the shaft sticks
through the gear, you will have to place a collar over the shaft, so the
drill can be positioned properly half way into the shaft and half way on
the gear.



I'd do something like that, but instead of a taped pin, I'd tap the hole
and screw in a socket head "grub "screw with Loctite. It used to be a
common fix and was called a Scotch key



He said that the shaft was soft, the gear was hard. There is zero chancefor
these options to work as the drill will invariably drift into the soft shaft
and away from the hard gear.

CarlBoyd